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"All I've ever done is try my hardest to protect you, but I couldn't protect you from this. I'm so sorry my beautiful sweet baby," she wrote on Facebook.

The 41-year-old told the Washington Post that on the day he committed suicide, the young ice hockey player seemed "happy" and was "proud" that he had remembered to go to his tutoring session without being reminded.

She baked him some treats as a reward, and as usual he went to his room after dinner - texting and talking on Snapchat.

"My son Tysen Benz was an 11-year-old student, athlete, comedian, friend, brother, charismatic and all around amazing child," she was quoted as saying by a friend who set up a GoFundMe page for the family.

Shortly after 10pm, Ms Goss went to check on each of her three sons and tuck them in for bedtime. Tysen's door was locked, but she was able to open it with her key.

When she stepped inside, she realised he wasn't in his bed, but her first thought was simply that the boy was being cheeky.

"I tried to hurry up and lift him up. I was screaming. I told my oldest son to call 911. My littlest one was bawling."

In an interview with the Associated Press, she said it happened unbelievably fast.

"The whole thing happened in about 40 minutes. He was fine and then I found him."

Paramedics rushed to the family's home and managed to revive him, however, he was placed on life support for three weeks at a hospital near Detroit with no improvement.

Eventually, she had to make the heart-wrenching decision to let him go.

Ms Goss told AP her son's death was the result of "a twisted, sick joke" delivered in the form of cyber-bullying.

A 13-year-old girl has since been charged with malicious use of a telecommunication service and using a computer to commit a crime, after she faked her death during a conversation with Tysen that night.

Lawyers are yet to confirm Tysen's relationship with the teen, who has not been named, but Ms Goss believes she was his girlfriend.

"She did a prank that made it look like she killed herself and used other friends and their [social media] accounts to make it look like she killed herself ... so, he believed her and said 'I'm going to kill myself'," she told the New York Post.

She said her son had no underlying issues that would hint toward self-harm.

"He was perfectly happy and fine. There was no additional sadness that was occurring. He had tons of friends," she told the Washington Post.